diff options
Diffstat (limited to 'app_client_examples/telemetry-cloud-app/app/cloudproxy-client')
3 files changed, 405 insertions, 0 deletions
diff --git a/app_client_examples/telemetry-cloud-app/app/cloudproxy-client/cloudproxyclient.cpp b/app_client_examples/telemetry-cloud-app/app/cloudproxy-client/cloudproxyclient.cpp new file mode 100755 index 0000000..0a30446 --- /dev/null +++ b/app_client_examples/telemetry-cloud-app/app/cloudproxy-client/cloudproxyclient.cpp @@ -0,0 +1,261 @@ +/* + * Copyright (C) 2020 MERA + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#include <thread> +#include <algorithm> + +#include "cloudproxyclient.h" +#include "hmi-debug.h" + + +static const char API_name[] = "cloudproxy"; + +const std::vector<std::string> CloudProxyClient::m_api_list { + std::string("ping"), + std::string("createConnection"), + std::string("sendMessage"), + std::string("destroyConnection") + }; + +const std::vector<std::string> CloudProxyClient::m_event_list { + std::string("sendMessageConfirmation"), + std::string("receivedMessage") + }; + +static void event_loop_run(sd_event* loop) +{ + sd_event_loop(loop); + sd_event_unref(loop); +} + +static void on_hangup(void *closure, afb_wsj1 *wsj) +{ + HMI_DEBUG("cloudproxyclient", "called"); + (void)closure; + (void)wsj; +} + +static void on_call(void *closure, const char *api, const char *verb, afb_wsj1_msg *msg) +{ + HMI_ERROR("cloudproxyclient", "this method should not be called"); + (void)closure; + (void)api; + (void)verb; + (void)msg; +} + +static void on_event(void* closure, const char* event, afb_wsj1_msg *msg) +{ + HMI_DEBUG("cloudproxyclient", "event [%s]", (event ? event: "")); + (void)closure; + + static_cast<CloudProxyClient*>(closure)->on_event(nullptr, event, msg); +} + +static void on_reply(void *closure, afb_wsj1_msg *msg) +{ + HMI_DEBUG("cloudproxyclient", "called"); + (void)closure; + (void)msg; +} + + +CloudProxyClient::CloudProxyClient() +{ +} + +CloudProxyClient::~CloudProxyClient() +{ + if(m_websock) + { + afb_wsj1_unref(m_websock); + } + if(m_loop) + { + sd_event_exit(m_loop, 0); + } +} + +int CloudProxyClient::init(const int port, const std::string& token) +{ + int ret = 0; + if(port <= 0 && token.size() == 0) + { + HMI_ERROR("cloudproxyclient","port and token should be > 0, Initial port and token uses."); + return -1; + } + + { + m_loop = nullptr; + int ret = sd_event_new(&m_loop); + if(ret < 0) + { + HMI_ERROR("cloudproxyclient","Failed to create event loop"); + return -1; + } + + { + // enforce context to avoid initialization/goto error + std::thread th(event_loop_run, m_loop); + th.detach(); + } + + /* Initialize interface from websocket */ + m_itf.on_hangup = ::on_hangup; + m_itf.on_call = ::on_call; + m_itf.on_event = ::on_event; + + m_uri += "ws://localhost:" + std::to_string(port) + "/api?token=" + token; + + m_websock = afb_ws_client_connect_wsj1(m_loop, m_uri.c_str(), &m_itf, this); + if(!m_websock) + { + HMI_ERROR("cloudproxyclient","Failed to create websocket connection"); + return -1; + } + } + + HMI_DEBUG("cloudproxyclient", "Initialized"); + + return ret; +} + + +int CloudProxyClient::call(const std::string& verb, json_object* arg) +{ + int ret; + if(!m_websock) + { + return -1; + } + + if (verb.empty() || m_api_list.end() == std::find(m_api_list.begin(), m_api_list.end(), verb)) + { + HMI_ERROR("cloudproxyclient","verb [%s] doesn't exit", verb.c_str()); + return -1; + } + + ret = afb_wsj1_call_j(m_websock, API_name, verb.c_str(), arg, ::on_reply, this); + if (ret < 0) + { + HMI_ERROR("cloudproxyclient", "Failed to call verb:%s", verb.c_str()); + } + + return ret; +} + + +int CloudProxyClient::sendMessage(const std::string& data) +{ + if(!m_websock) + return -1; + + json_object* j_obj = json_object_new_object(); + json_object_object_add(j_obj, "data", json_object_new_string(data.c_str())); + + return this->call("sendMessage", j_obj); +} + +void CloudProxyClient::set_event_handler(enum EventType et, handler_func f) +{ + if (et > Event_Min && et < Event_Max) + { + switch (et) + { + case Event_SendMessageConfirmation: + this->subscribe(CloudProxyClient::m_event_list[0]); + break; + case Event_ReceivedMessage: + this->subscribe(CloudProxyClient::m_event_list[1]); + break; + default: + break; + } + + this->handlers[et] = std::move(f); + } +} + +int CloudProxyClient::subscribe(const std::string& event_name) +{ + if(!m_websock) + return -1; + + json_object* j_obj = json_object_new_object(); + json_object_object_add(j_obj, "event", json_object_new_string(event_name.c_str())); + + int ret = afb_wsj1_call_j(m_websock, API_name, "subscribe", j_obj, ::on_reply, this); + if (ret < 0) + HMI_ERROR("cloudproxyclient", "subscribe filed for '%s'", event_name.c_str()); + + return ret; +} + +int CloudProxyClient::unsubscribe(const std::string& event_name) +{ + if(!m_websock) + return -1; + + json_object* j_obj = json_object_new_object(); + json_object_object_add(j_obj, "event", json_object_new_string(event_name.c_str())); + + int ret = afb_wsj1_call_j(m_websock, API_name, "unsubscribe", j_obj, ::on_reply, this); + if (ret < 0) + HMI_ERROR("cloudproxyclient", "unsubscribe filed for '%s'", event_name.c_str()); + + return ret; +} + +void CloudProxyClient::on_event(void *closure, const char *event, afb_wsj1_msg *msg) +{ + HMI_DEBUG("cloudproxyclient", "event: (%s) msg: (%s).", event, afb_wsj1_msg_object_s(msg)); + (void) closure; + + if (strstr(event, API_name) == nullptr) + return; + + + json_object* ev_contents = afb_wsj1_msg_object_j(msg); + json_object *json_data; + if(!json_object_object_get_ex(ev_contents, "data", &json_data)) + { + HMI_ERROR("cloudproxyclient", "got ev_contents error."); + return; + } + + const char* event_type = nullptr; + json_object *json_event_type; + if(!json_object_object_get_ex(json_data, "type", &json_event_type) || + (event_type = json_object_get_string(json_event_type)) == nullptr) + { + HMI_ERROR("cloudproxyclient", "event_type is null."); + return; + } + + const std::string et{event_type}; + if (CloudProxyClient::m_event_list[0] == et) + { + auto i = this->handlers.find(Event_SendMessageConfirmation); + if (i != this->handlers.end()) + i->second(json_data); + } + else if (CloudProxyClient::m_event_list[1] == et) + { + auto i = this->handlers.find(Event_ReceivedMessage); + if (i != this->handlers.end()) + i->second(json_data); + } +} diff --git a/app_client_examples/telemetry-cloud-app/app/cloudproxy-client/cloudproxyclient.h b/app_client_examples/telemetry-cloud-app/app/cloudproxy-client/cloudproxyclient.h new file mode 100755 index 0000000..b333a14 --- /dev/null +++ b/app_client_examples/telemetry-cloud-app/app/cloudproxy-client/cloudproxyclient.h @@ -0,0 +1,74 @@ +/* + * Copyright (C) 2020 MERA + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#pragma once + +#include <vector> +#include <map> +#include <string> +#include <functional> +#include <json-c/json.h> +#include <systemd/sd-event.h> + +extern "C" +{ +#include <afb/afb-wsj1.h> +#include <afb/afb-ws-client.h> +} + +class CloudProxyClient +{ +public: + using handler_func = std::function<void(json_object*)>; + + enum EventType { + Event_Min, + Event_SendMessageConfirmation = 1, + Event_ReceivedMessage, + Event_Max + }; + + + CloudProxyClient(); + ~CloudProxyClient(); + + CloudProxyClient(const CloudProxyClient &) = delete; + CloudProxyClient &operator=(const CloudProxyClient &) = delete; + + int init(const int port, const std::string& token); + + int sendMessage(const std::string& data); + + void set_event_handler(enum EventType et, handler_func f); + + void on_event(void *closure, const char *event, struct afb_wsj1_msg *msg); + + int subscribe(const std::string& event_name); + int unsubscribe(const std::string& event_name); + +private: + int call(const std::string& verb, struct json_object* arg); + +private: + static const std::vector<std::string> m_api_list; + static const std::vector<std::string> m_event_list; + + std::map<EventType, handler_func> handlers; + struct afb_wsj1_itf m_itf; + struct afb_wsj1* m_websock{nullptr}; + sd_event* m_loop{nullptr}; + std::string m_uri; +}; diff --git a/app_client_examples/telemetry-cloud-app/app/cloudproxy-client/hmi-debug.h b/app_client_examples/telemetry-cloud-app/app/cloudproxy-client/hmi-debug.h new file mode 100755 index 0000000..674f5df --- /dev/null +++ b/app_client_examples/telemetry-cloud-app/app/cloudproxy-client/hmi-debug.h @@ -0,0 +1,70 @@ +/* + * Copyright (c) 2018 TOYOTA MOTOR CORPORATION + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#ifndef __HMI_DEBUG_H__ +#define __HMI_DEBUG_H__ + +#include <time.h> +#include <stdio.h> +#include <stdarg.h> +#include <string.h> +#include <stdlib.h> + +enum LOG_LEVEL{ + LOG_LEVEL_NONE = 0, + LOG_LEVEL_ERROR, + LOG_LEVEL_WARNING, + LOG_LEVEL_NOTICE, + LOG_LEVEL_INFO, + LOG_LEVEL_DEBUG, + LOG_LEVEL_MAX = LOG_LEVEL_DEBUG +}; + +#define __FILENAME__ (strrchr(__FILE__, '/') ? strrchr(__FILE__, '/') + 1 : __FILE__) + +#define HMI_ERROR(prefix, args,...) _HMI_LOG(LOG_LEVEL_ERROR, __FILENAME__, __FUNCTION__, __LINE__, prefix, args, ##__VA_ARGS__) +#define HMI_WARNING(prefix, args,...) _HMI_LOG(LOG_LEVEL_WARNING, __FILENAME__, __FUNCTION__,__LINE__, prefix, args,##__VA_ARGS__) +#define HMI_NOTICE(prefix, args,...) _HMI_LOG(LOG_LEVEL_NOTICE, __FILENAME__, __FUNCTION__,__LINE__, prefix, args,##__VA_ARGS__) +#define HMI_INFO(prefix, args,...) _HMI_LOG(LOG_LEVEL_INFO, __FILENAME__, __FUNCTION__,__LINE__, prefix, args,##__VA_ARGS__) +#define HMI_DEBUG(prefix, args,...) _HMI_LOG(LOG_LEVEL_DEBUG, __FILENAME__, __FUNCTION__,__LINE__, prefix, args,##__VA_ARGS__) + +static char ERROR_FLAG[6][20] = {"NONE", "ERROR", "WARNING", "NOTICE", "INFO", "DEBUG"}; + +static void _HMI_LOG(enum LOG_LEVEL level, const char* file, const char* func, const int line, const char* prefix, const char* log, ...) +{ + const int log_level = (getenv("USE_HMI_DEBUG") == NULL)?LOG_LEVEL_ERROR:atoi(getenv("USE_HMI_DEBUG")); + if(log_level < level) + { + return; + } + + char *message; + struct timespec tp; + unsigned int time; + + clock_gettime(CLOCK_REALTIME, &tp); + time = (tp.tv_sec * 1000000L) + (tp.tv_nsec / 1000); + + va_list args; + va_start(args, log); + if (log == NULL || vasprintf(&message, log, args) < 0) + message = NULL; + fprintf(stderr, "[%10.3f] [%s %s] [%s, %s(), Line:%d] >>> %s \n", time / 1000.0, prefix, ERROR_FLAG[level], file, func, line, message); + va_end(args); + free(message); +} + +#endif //__HMI_DEBUG_H__ |